GNU bug report logs - #12255
24.2; [PATCH] wrong regexp in c-basic-matchers-before

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Leo <sdl.web <at> gmail.com>
Subject: bug#12255: closed (Re: bug#12255: 24.2; [PATCH] wrong regexp in
 c-basic-matchers-before)
Date: Wed, 22 Aug 2012 05:56:01 +0000

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Your bug report

#12255: 24.2; [PATCH] wrong regexp in c-basic-matchers-before

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 12255 <at> debbugs.gnu.org.

-- 
12255: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12255
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Leo <sdl.web <at> gmail.com>
To: 12255-done <at> debbugs.gnu.org
Cc: bug-cc-mode <at> gnu.org
Subject: Re: bug#12255: 24.2; [PATCH] wrong regexp in c-basic-matchers-before
Date: Wed, 22 Aug 2012 13:54:31 +0800

On 2012-08-22 11:04 +0800, Leo wrote:
> It seems to me this regexp in c-basic-matchers-before would never
> succeed unless @ is of word syntax.

Sorry for the noise.

The syntax for @ is word thanks to c-identifier-syntax-modifications.

Leo

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From: Leo <sdl.web <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.2; [PATCH] wrong regexp in c-basic-matchers-before
Date: Wed, 22 Aug 2012 11:04:10 +0800

It seems to me this regexp in c-basic-matchers-before would never
succeed unless @ is of word syntax.

(concat "\\<"
        (regexp-opt
         '("@interface" "@implementation" "@protocol")
         t)
        "\\>")

Should this patch be applied?

diff --git a/lisp/progmodes/cc-fonts.el b/lisp/progmodes/cc-fonts.el
index 2d116e1e..f0f40d54 100644
--- a/lisp/progmodes/cc-fonts.el
+++ b/lisp/progmodes/cc-fonts.el
@@ -855,7 +855,7 @@ (c-lang-defconst c-basic-matchers-before
 
 	    ;; The @interface/@implementation/@protocol directives.
 	    ,(c-make-font-lock-search-function
-	      (concat "\\<"
+	      (concat "\\_<"
 		      (regexp-opt
 		       '("@interface" "@implementation" "@protocol")
 		       t)

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